plasma-desktop crashes randomly

[Alex Wauck]

Binary package hint: kdebase-workspace

/usr/bin/plasma-desktop crashes seemingly at random. I have obtained a backtrace, which I have attached.

I am running Ubuntu Karmic ("converted" to Kubuntu by installing kubuntu-desktop).

ProblemType: Bug
Architecture: amd64
Date: Sun Jul 5 16:13:26 2009
DistroRelease: Ubuntu 9.10
Package: kdebase-workspace-bin 4:4.2.95-0ubuntu2
ProcEnviron:
 LANGUAGE=
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.30-10.12-generic
SourcePackage: kdebase-workspace
Uname: Linux 2.6.30-10-generic x86_64

[bq (balique)]

This is a mee too comment. Crashes and then restarts +- every half an hour.

[lessoffensive (lessoffensive)]

I have this same setup (9.10 on amd64, KDE 4:4.2.95-0ubuntu2, though always kubuntu) and I have extremely frequent crashes when changing workspaces (aka virtual desktops). It's not 100% changing workspaces, but very often and I haven't figured out what about changing makes it crash. Are your crashes related to changing workspaces?

[Alex Wauck (awauck)]

I don't think I have ever had a crash while changing workspaces. All my crashes have not appeared to be related to anything I do.

[Alex Wauck (awauck)]

Judging by my backtrace, it looks like the problem is that in AbstractGroupingStrategy::closeGroup(TaskGroup *group), it calls d->groupManager->manualSortingRequest(item, index) when d->groupManager is NULL. However, this call is inside an if statement that should protect against that. So, I suspect that something occurs in the foreach loop that makes d->groupManager NULL.

[Jonathan Thomas (echidnaman)]

It was fixed upstream, but missed KDE 4.3 RC1. I'd fix this myself but I'm on vacation at the moment, and not near a Kubuntu-dev-able computer. :(

[Jonathan Thomas (echidnaman)]

Fixed in 4.3 RC2.

[tlu (thomas-ludwig-gmx)]

Thanks. The fix works for me - no more crashes.